Overview:
- Estimated achievement difficulty: 3/10 [Achievement Difficulty Rating]
- Offline: 27 [1000gs.png]
- Online: 0
- Approximate amount of time to 1000gs.png: 10-15 hours without a guide; 6-8 hours with one [Estimated Time to 100%]
- Minimum number of playthroughs needed: 1
- Missable achievements: Data Research (50G) is the only achievement that can't be mopped up via chapter select; it must be done either in your first playthrough or in a NG+ playthrough
- Does difficulty affect achievements: No difficulty option
- Unobtainable/glitched achievements: Data Research (50G) is currently glitched and unobtainable at the time of writing due to one terminal being behind a locked door

Introduction:
Welcome to The Entropy Centre, a first person puzzle game where you use a gun to invert the entropy of objects, allowing them to move backward through time. Fans of the Portal series will notice a lot of similarities, as you wake up in an abandoned facility while an AI talks to you through a series of puzzle chambers. This game takes place in a facility on the moon, tasked with saving Earth each time a world-ending event occurs. This game is quite a bit longer than others in the genre, but once you get the hang of how to approach puzzles, the majority are all solved the same way. Achievements are all pretty straightforward aside from the collectibles, so read on below to ensure you don't need to do more than one playthrough. Let's get started.

Abbreviated Walkthrough:
The first, and absolutely most important, thing to be aware of is the collectibles for Data Research (50G). For some strange reason, the developers made the decision to make it so that you can't collect any missed terminals via chapter select after beating the game; doing so resets your collectible count. If you miss any, the only way to continue on with your collectible count is to choose "Continue" from the main menu, starting a new playthrough from the beginning of the game. You'll then need to play through the game again up to whatever point the collectible(s) is that you missed. As a result, I highly recommend keeping my collectible guide in Data Research (50G) handy and consult it throughout to ensure you don't need a second playthrough. Also important to note, as stated in that achievement solution, is that if you die after getting a terminal, you must recollect it if your game didn't save in between. Recollect any after you die just to be safe.

Other than that, nothing else is missable, so feel free to play blind and enjoy the game if you'd like. There actually isn't really anything to worry about until Act 7. For whatever reason, almost every miscellaneous achievement takes place in that Act. Specifically, refer to the following solutions when you get to Act 7, in this order, to grab them while you're there:
 After that, the only other chapter with miscellaneous achievements is Act 12. Be sure to get You Are Terminated (50G) while there.

And that's it for everything besides the story related achievements. There's a walkthrough for all the puzzles linked in Looper (200G) if you need it or prefer to just follow it throughout.

Conclusion:
The Entropy Centre is a really good puzzle game. In my opinion, most of the puzzles were too simple - many were ultimately just a matter of doing steps in reverse and then rewinding - but the story was unique and the emails were very interesting and entertaining. Hopefully you solved all the puzzles yourself, because who buys a multi-hour $25 puzzle game and then follows a walkthrough for the whole thing? Hopefully you enjoyed the game and managed the completion.
 
[XBA would like to thank Necrophage33 for this Roadmap]

The Entropy Centre Achievement Guide

Printable Guide
Show completed achievements
Show secret achievements

There are 27 achievements with a total of 1000 points

  • Complete Act 1

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 2

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 3

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 4

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 5

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 6

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 7

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 8

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 9

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 10

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 12

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 13

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 14

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Complete Act 15

    Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Destroy 3 bots with one explosive cube

    Act 12

    This is the first act where explosive cubes are introduced, and the easiest (and potentially only) place to get this achievement. 

    Near the beginning of the act you'll reach a lockdown room, and there will always be four bots spawning inside the room. All the side rooms, including the one you start in, have explosive cubes. Your goal is to wait until three bots group up and then launch an explosive cube into the group so three get destroyed. It might take a bit of trial and error, but there are a ton of explosive cubes and the bots keep respawning until you clear the lockdown. You can also let yourself be killed to reload the checkpoint if need be. 
  • Rewind 3 items in the play area

    This is first obtainable immediately after getting the Entropy gun in Act 1. You'll clear some debris and head to a firing range area. In the range there are three destroyed stone columns. Rewind all three and this achievement will unlock.

    If you don't get it there, there are numerous other areas and puzzle chambers where you can rewind three things to unlock this.
  • Relax at the beach with a drink

    Act 7

    Right at the beginning of the act you'll use a bridge cube to leave the building and head outside. Walk down the ramp to the beach and go to the gazebo on the left. Inside it are four chairs, one of which you can interact with to sit and have a drink, unlocking this achievement. 
  • Read all terminal messages

    *MISSABLE*

    *CURRENTLY BUGGED AND UNOBTAINABLE*


    *Unobtainable note* There is a collectible near the start of Act 5 that is currently unobtainable - it is behind a locked door and therefore can't be reached. The developers have acknowledged this and are working to fix it. Please read the following paragraph, because if you decide to play through the entire game anyway, know that you'll then need to do a second playthrough up to Act 5 to get your one missing collectible once it's patched.

    It's important to first note that any terminal messages you miss during your playthrough CANNOT be mopped up with chapter select after you beat the game. If you use chapter select, your collectible counter resets to zero. What you CAN do is select 'Continue' from the main menu to essentially start NG+, and your collectibles do carry over there, but you'll need to play through the game again up until whatever collectible(s) you missed. Either way, it's in your best interest to collect them all in your first and only playthrough. 

    The second most important thing to note is that if you die after getting a collectible, you must recollect it after you respawn or it won't count. Keep this in mind in particular when the rivers are introduced, as it's very easy to accidentally fall in the water and die, and lose your collectible progress. 

    The terminal messages, as referenced in the achievement description, come in the form of emails on computers. There are a total of 76 Intel items, as the game calls them, to find. Note that for collectibles to count, you don't actually need to read each email. Simply interacting with the computer and then backing out is enough to get them to count. However, I do recommend reading them if you want to follow along with the story more closely. 

    Unfortunately, as of the time of writing this guide, only 75/76 have been found, and there is a suspicion that the final one is bugged or glitched or inaccessible somehow, because this achievement currently has a 0.00% unlock rate. 

    I have listed out all of the terminal locations by act. I highly recommend following along and getting them immediately so you don't risk missing one. Refer to my guide HERE
  • Visit all exhibits in The Entropy Museum

    Act 7

    Youll head into the Entropy Museum during the first half of this act, and the first half of the Museum is empty aside from some exhibits:
     
    • After jumping over the rope to enter, you'll be on the first floor at the information desk. There are three wall posters to get near to hear their recordings. 
    • On the way up the stairs to the second floor there will be an exhibit right in front of you where the stairs split. 
    • On the second floor there are three more wall posters to listen to, all in the center. There are also two regular exhibits (the gun in the center and the extendable bridge at the top of the left staircase). 
    • On the third floor, you'll automatically get a giant wall poster read to you. There are then two groups of exhibits by the exit, one on each side. Just walking into the grouping of exhibits is enough for it to count. 
    This achievement will unlock as soon as you enter the final group of exhibits, so if it doesn't, head back around until it does and don't leave until this achievement unlocks.
  • Leave The Entropy Museum with all walls repaired.

    Act 7

    During the action sequence inside the Entropy Museum, you'll be facing off against a bunch of entropy bots as you progress up a few floors. On each floor are a pair of walls holding up the floor above, in the center of each area. These walls can get destroyed by the bots shooting projectiles at you. So, first destroy all of the Entropy bots (the music will go back to normal once they're all destroyed), then take a look at the area you started the fight and the two floors above, making sure none of the small walls in the center are destroyed. If they are, rewind them to fix them. Then, leave next to the gift shop on the other side and this achievement will unlock immediately after going through the door. 
  • Act 7

    Near the beginning of the act, you'll be stuck at a large gap and then E will show up and destroy some stuff to help you across. Once you cross, walk up to E and press button-y.png to pet it, unlocking this achievement.
  • Launch an entropy bot into another one

    Act 7

    Both in the Entropy Museum and in some chambers after, there will be more than one entropy bot which you need to destroy. To unlock this achievement, get close to one and press button-y.png to pick it up, then press button-x.png to launch it forward at another hot, destroying both and unlocking this achievement. 

    As a side note, I actually unlocked this achievement by rewinding an entropy bot's projectile back at it when it was next to another. The projectile destroyed both and this achievement unlocked. I'm not sure if that by itself is enough, or if the projectile coincidentally caused one to hit the other while exploding, but you're like to do this naturally while destroying some. 
  • Find Astra a hat

    Act 7

    Youll head through the Entropy Museum in this act, and go through an action sequence of needing to destroy entropy bots that are shooting at you. After destroying them all, you'll head down a long staircase to the exit. Next to the exit is a gift shop. Head to the back of the gift shop and around the back side of the shelves to find hats and sunglasses on the backside of the shelves. Interact with the hat to pick it up and unlock this achievement. 
 

Secret achievements

  • Story-related; cannot be missed.

    Refer to Looper (200G) for more information. 
  • Looper

     

    200

    Hidden

    Story-related; cannot be missed.

    This achievement unlocks when the credits start to roll. 

    If you would like to follow a guide, or get stuck and would like to consult one, a text guide can be found HERE, and a video guide is available below. Full credit to the creator of each. I personally solved all of the puzzles myself, and so can't vouch for either guide, but both should work fine.
  • Hidden

    Story-related; cannot be missed.

    This will unlock right before the end of Act 13.

    Refer to Looper (200G) for more information. 

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Author

  • Necrophage33

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